🖥️mailq

➡️This is a command-line reference manual for commands and command combinations that you don’t use often enough to remember it. This cheatsheet explains the mailq command with important options and switches using examples.

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▁ ▂ ▃ ▄ ꧁ 🔴☠ COMMANDLINE-KUNGFU WITH CHEATSHEETS ☠🔴꧂▅ ▃ ▂ ▁

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#==============================#
# CMD MAILQ
#==============================##==============================#
lq -AC
# -Ac -Am These options are used by Sendmail for selecting configuration files and are ignored by Exim.#

mailq -Lq
#  -L <tag>  This option is equivalent to setting syslog_processname in the config file and setting log_file_path to syslog.  The  -q option starts one queue runner process. This scans the queue of waiting messages, and runs a delivery process for each one in turn.

mailq | awk '/^[0-9A-F]/{print $1}' | tr -d \* | xargs -n 1 postcat -q > mailq-20160801.txt
# Save your whole postfix queue to a file.'

mailq |grep " Jan 20 " |awk {'print $1'} |xargs -n 1 postsuper -d
# Delete messages from Jan 20th in the postfix queue.

mailq | grep " Dec 16 " | awk {'print $1'} | xargs -n 1 postsuper -d 
# Delete messages from Dec 16th in the postfix queue.

mailq | awk '/^[0-9A-F]+ .+ Dec 11 /{print $1}' | xargs -n 1 postsuper -d 
# Delete messages from Dec 11th in the postfix queue.

#==============================##==============================#
# CMD MAILQ
#==============================##==============================#

Cheatsheets are an excellent complement to other information sources like Linux man-pages, Linux help, or How-To’s and tutorials, as they provide compact and easily accessible information. While man-pages and detailed tutorials often contain comprehensive explanations and extensive guides, cheatsheets summarize the most important options forthe command mailq in a clear format. This allows users to quickly access the needed information for mailq without having to sift through lengthy texts. Especially in stressful situations or for recurring tasks, cheatsheets for mailq are a valuable resource to work efficiently and purposefully.

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